Bumper skirt



FIG. 1 is a front and side perspective view of a bumper skirt, showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a right-side view thereof;

FIG. 4 is a left-side view thereof;

FIG. 5 is a top, plan view thereof; and,

FIG. 6 is a bottom, plan view thereof. 

The ornamental design for a bumper skirt, as shown and described. 